The poroblems are:
1 st: In chromium the change proxy settings does not work. I deleted all the config files and restarted chromium but it still does not work. The same version (7.0.516.0 (58618)) has no problem in a Vbox.

is when I start vidalia it shows “Vidalia detected that the Tor software exited unexpectedly. Please check the message log for recent warning or error messages.”
For the log messages see pic bellow.
http://www.hostpic.org/images/59vidalia.jpeg